Clip for harrow-teeth.



T. M. FINE &- L. BURNAM.

CLIP FOR HARROW TEETH. arrucmou FILED APR. 18. 1914.

1,1 34,832, Patented Apr. 6, 1915.

7710mm; M fine, Lyman ,BZWIWHO,

THOMAS M. FINE AND LYMAN BURNAM, OF WALLA WALLA, WASHINGTON.

CLIP FOR HABROW-TEETH.

Specification of Letters Patent.

PatentedApr. 6, 1915.

Application filed April 18, 1914. Serial No. 832,798.

To all whom it may concern:

Be it known that we, THOMAS M. FINE and LYMAN BURNAM, citizens of-theUnited States, residing at Walla Walla, in the county of Walla Walla andState of Washington, have invented new and useful'Im provements in Clipsfor Harrow-Teeth, of which the following is a specification.

This invention relates to clips for harrow teeth and it consists in thenovel features hereinafter described and claimed.

An object of the invention is to provide a clip mechanism of simple anddurable structure which is especially adapted to be used for securingharrow teeth in proper position upon the bars of a harrow frame, ofiron, steel or other metal. The parts of the clip structure are soarranged as to permit the harrow teeth to be disposed at a right angleto the bar of the frame of a harrow or at an acute angle with relationto the same as desired.

lVith the above object in view the clip structure includes a block inthe shape of a rhomb in side elevation said block being provided at itsends with notches adapted to receive the opposite side portions of a [1-between their ends and the said channels A harrow.

having converging side walls. tooth having a rectangular shank isadapted to be positioned in one or the other of the said channels and isheld therein by means of the U-bolt hereinbefore mentioned.

In the accompanying drawing :-Figure l is a side elevation of a portionof one of the harrow bars showing the manner in which a tooth is securedto the same by means of the clip structure. Fig. 2 is a transversesectional view of the bar showing the clip in edge elevation. Figs. 3and 4: are detailed views of the clip structure.

The harrow to which the clip structure is especially adapted to beapplied includes bars 1 of any suitable metal the said bars beingchanneled longitudinally. The clip structure includes a block 2 which isrhombshaped in side elevation and which is proof a U-bolt 4E. The bolt 4passes transversely through the intermediate portion of the bar 1 and issecured in place by means of nuts 5 screw threaded upon the endsthereof. The block 2 is provided at one side with shoulders 6 which areadapted to fit between the opposite edge portions of the bar 1 and whichserve to prevent the block 2 from turning with relation to the bar 1when the nuts 5 upon the bar 4 are tightened. At its opposite side theblock 2 is provided with channels 7 and 8. The said channels 7 and 8extend from edge to edge of the block the channel 7 being disposed at aright angle to the opposite edges of the block and the channel 8 at anacute angle with relation to the said edges. The channels 7 and 8intersect each other at points midway between their ends and thesaidchannels are provided with inclined side walls. The.

chiu iznel 8 is a little deeper than the channe A harrow tooth 9 isadapted to be used in combination with the U-bolt and block hereinbeforedescribed and the said tooth is pro vided with a shank which isrectangular in transverse section. The said shank portion of the toothis adapted to be received in either one of the channels 7 or 8 and theintermediate portion of the U-bolt 4 bears against the outer part of thesaid tooth shank and holds the tooth securely in that channel in whichit is placed. Therefore it will be seen that the tooth 9 when its shankis in the channel 7 will be disposed at a right angle to the bar 1 andthe said tooth when in the channel 8 will be disposed at an acute angleto the long dimension of the harrow bar 1. In view of the fact that thetooth 9 when disposed at an acute angle with relation to the bar 1 willbe subjected to greater strain than when it is disposed at a right angleto the said bar the channel 8 is made somewhat deeper than the channel 7in order to afford greater bearing surface for the block being providedat that side opposite the side thereof at Which the shoulders areinountedrwith a channel adapted to receive a harroW tooth.

2. A harroW tooth clip comprising a block Which is rhomb shaped in sideelevation and provided at its ends With recesses, said block beingprovided at one side With channels which extend from edge to edge of theblock and Which are disposed at angleswith relation to each other, saidchannels intersecting each other at points midway between their ends oneof said channels being deeper than the other, the said channels havingconverging side Walls and a U-bolt having edge portions adapted to enterthe recesses of the block.

In testimony whereof We aflix our signatures in presence of tWoWitnesses.

THOMAS M. FINE. LYMAN BURNAM. Witnesses:

J. G. THoMAs, W. A. TONER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

